I have a utility method (below) that has always served me well. After databinding a report control, I pass the control to this and it renders the report as a PDF.
I recently upgraded to .NET 4.0 and the new 2010 report viewer control (10.0.0.0). Now it throws the error (below) if the recordset (dataset) I pass to the reportviewer doesn't have any data.
Any ideas? Thanks!
ERROR (top 5):
[InvalidOperationException: (processing): ScalableList: Index 0 outside the allowed range [0::-1]] Microsoft.ReportingServices.Diagnostics.Utilities.DefaultRSTraceInternal.Assert(Boolean condition, String componentName, String message) +176 Microsoft.ReportingServices.OnDemandProcessing.Scalability.ScalableList1.get_Item(Int32 index) +212 Microsoft.ReportingServices.Rendering.HPBProcessing.PageStructStaticMemberCell.AddToPageCHContent(List1 rowHeights, ScalableList`1 columnInfo, Int32 rowIndex, Int32 colIndex, Boolean isLTR, RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState, Boolean& hasLabels) +60 Microsoft.ReportingServices.Rendering.HPBProcessing.Tablix.AddToPage(RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) +781
UTILITY METHOD:
private static void renderReportAsPDF(ReportViewer reportViewer, HttpResponse response) {
Warning[] warnings;
string[] streamids;
string mimeType;
string encoding;
string extension;
string reportName = reportViewer.LocalReport.DisplayName;
byte[] bytes = reportViewer.LocalReport.Render("PDF", null, out mimeType, out encoding,out extension, out streamids, out warnings);
response.Clear();
response.ContentType = mimeType;
response.ContentEncoding = System.Text.Encoding.UTF32;
response.BinaryWrite(bytes);
response.End();
}